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Community and Q&A

Recommended tape for Certainteed Membrain

cody_fischer | Posted in Green Products and Materials on

I’m using CertainTeed MemBrain as the air barrier on a project. The instructions linked below say to use the “recommended” tape to seal the 6” overlap seams between sheets of the product.

Can someone give me a recommended and commonly available tape to specify to my builder?

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  1. Expert Member
    Akos | | #1

    Up here in the great white north, I use tuck tape (blue one is better). You can use any budget acrylic sheathing tape, Tyvek tape is pretty good and so is 3M 8088.

    Make sure to order the tape yourself and have it on the job site ahead of time. This works the best for any non-standard item that is not stocked at the local box store.

  2. Expert Member
    BILL WICHERS | | #2

    I use a 3M seaming tape, their 8087CW. It works fine, just be careful it doesn't tear when you cut it. It will stick like crazy to MemBrain, I've used it for that before. It's also good for sealing around electrical boxes that penetrate the MemBrain, but you need to reinforce the corners a bit. This particular 3M tape is easy to tear when cut at sharp angles -- that's it's only real weakness.

    BTW, the wider roll is better here since it makes alignment less critical, making application easier.


  3. cody_fischer | | #3

    Thank you both!

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